Selkirk 104133 Rv Series Fixed Wye 4x4x3 Type B Gas Vent

Product Description

The SELKIRK 104133 is a fixed wye fitting from the RV Series, designed for use in Type B gas vent systems. This fitting provides a three-way junction with a 4 x 4 x 3 inch configuration, allowing installers to branch a 3-inch lateral off a 4-inch main vent run without disrupting system flow geometry. At 10 inches in length, it maintains a compact profile in tight mechanical spaces. Licensed HVAC technicians and plumbers install this type of fitting when routing gas appliance venting through walls, attics, or utility chases where multiple appliance connections are required on a single vent stack.

The 104133 is suited for residential and light commercial gas venting applications using double-wall Type B vent pipe. It is typically installed on gas furnaces, water heaters, boilers, or other Category I gas appliances that require a common venting arrangement. The fixed wye design routes the branch connection at a set angle, making it appropriate for planned vent layouts where the branch direction is determined during system design rather than in the field.

Key Features

• Fixed wye configuration with 4 x 4 x 3 inch inlet and outlet sizing
• Part of the RV Series Type B double-wall gas vent system
• 10-inch overall length for consistent rough-in dimensions
• Designed for common-venting of multiple Category I gas appliances
• Fixed outlet angle simplifies layout in pre-planned vent runs

Compatibility

Designed for use with Type B gas vent systems. Compatible with other SELKIRK RV Series components of matching diameter per system design requirements.

Installation Notes

Installation must be performed by a licensed HVAC technician or plumber in accordance with the appliance manufacturer instructions, local mechanical codes, and NFPA 54 or applicable fuel gas codes. All connected appliances must be shut off and allowed to cool before disassembling or modifying any vent section. Type B vent fittings must not be used with gas appliances that produce flue gas temperatures exceeding the rating of the vent system. Verify that combined appliance inputs and vent sizing comply with ACCA or appliance manufacturer venting tables before finalizing the installation.

Technical Specifications

• Series: RV Series
• Type: Fixed Wye
• Size: 4 x 4 x 3 inches
• Length: 10 inches
• Suitable For Use With: Type B Gas Vent Systems

Standard Information

• Brand: SELKIRK
• Manufacturer Part Number: 104133